Originally Posted by Ric
Just for you I will make it easier. That way you can do it.
1 Yard of Mulch 3" deep will cover 108 sq feet
1 Yard of Mulch 4" deep will cover 81 sq feet
1 Bag 2 cu feet at 3" will cover 8 sq feet
1 Bag 2 cu feet at 4" will cover 6 sq feet
No real need to make rocket science out of a simple thing. Remember this is for estimating only. The fact of the matter is you can not put down mulch at a perfect 3 or 4 inches over a large area. I always add in more mulch just to be sure we have enough.